Lock



April 17, 1928.

H. WILLIAMS- LOCK Filed May 18, 1927 2 Sheets-Sheet 1 April 17, 1 928. 1,6 66.078

H. WILLIAMS LOCK Filed May 18, 1927 2 Sheets-Shoot 2 Patented Apr. 17, 1928.

' HARRY WILLIAMS, or Dm o mmmem.

Loom Application filed May. 1.8,

My invention relates to a. permutation lock shown in the accompanying drawings and. more particularly described in the following specification and claims. t j v This invention is designed as, an improve: ment on the lock shown and described in Patent No. 1,460,518. dated July 3rd, 1923 and since assigned to me. i

Objection has been raised to this device I as the chain may bev forced v or prized from its riveted connection with the lock barrel or from theplugto which, the free endof the chain is secured. The lock tumblers shownin thepatent are cast or machined" from heavy stock and greatly add to the manufacturing cost of the lock, due not only to v the actual cost of production but also on account of the time required for assembling the same. c

The primary object of the present invention'therefore is to" provide a simple, inexpensive and effective lock of the; permutation type: fitted Witha staple, which may engage the links of a chain, shackle: or other like device, the constructionv beingsuch that the ends of thestaple. are concealed in the barrel of the lock, Where they are secured by locking mechanism against unlawful tam contained unit, whereby they may' be simulj n; are iid a a y Q d= ib llPP B d1 i ab e per ng, v j

Another fe'atureof the invention is to construct the staple with one of its legs; F813; tively longer than the other, that the end of a longitudinally movable bolt may enter a socket in the long legv of the staple. to secure it When locked, the. other leg oifi the-v staplef havinga peripheral slot tozreceive an annular element carried by the bolt,. the construction being such that the interlockmg -portions are overlapped by other ele-A 'ments so they cannot be readily tampered; with in an effort to release the staple.

- further object of the invention is to" reduce the manufacturing costby construct: 7 ing the lock tumblers of sheet metal by suit-i able forming dies, the: several tumblers be, ing" enclosed and nested together as a selfduce the time required for assembling the partswithin-the barrel of thelocgk, Another feature of the invention cons sts:

taneously placed in position and thus, re-

1927; Serial- No; ieaaoe.

audibleclick late formed of steam rs c adapted taco-operate with a ball: housed in u the WtllOf thebarrlel', the click plate being formed With,-a,.central rectangular opening adaptedto fit a rectangular portion of longitudinally movable bolt supported in the Wall of the lock barrel so that the may rotate With the, bolt, the'cylindrical pertion of the bolt extending'through a central opening infthe tumbler unit.

With the foregoing and otherv objects in proceeds, the invention further resides in the in the details scribed and claimed, it being understood that changes may; be. made in the; precise embodiment of the inventioniherein shovvn click plate 1 View which Will appear as the description Without departing from the spirit of the same.

- In the drawings accompanying, this speci fication: a

Figure l-is a side elevation of thelock showing the endsoffthe locking staple con; cealed Within the barrel of the device as When locked. w Figure 2 is a longitudinal. sectional View throughthe lock-With parts brokenawaya showing the Figure 3. is a similar View showingthe stapleunlocked. 4

Figure i is staple in locked position,

Figure 5 of the lock a cross-sectional vievig taken" onorabout line Of- Fi'g ureYQ moved to expose a ball, acting conjunction with the click plate-to audibly indicate progressive. adjustment of the tumblers Figure 6. is, a fragmentary longitudinaj;- sectional View of the lock: taken onor about line 6- 6 of Figure 5 on showing several tumblers, nested together,%

the Washers separating,- the tumblersiaals the central longi--.

the. projecting tongue of n I tudinally movable bolt extending through the aligned slots ofthetumblers as when unlocked.

Figure .7 is; a tragmentary longitudinal! sectionaliview of the lock barrel taken out or about line; 7-Z of Figure 6 showing the click plate hall-in the socket at the barrel I n i hr il gsd 1 i Figure 8 is a cross-sectional view taken on or about line 8 8 of Figure 3.

Figure 9 is a perspective view of oneportion of the enclosing case supporting the seV- eral tumblers and washers.

Figure 10 is a perspective view of one of the tumblers.

V Figure 11 is a perspective view of a washer placed between the tumblers, provided with projecting ears extending between slotted openings in the enclosing case.

Figure 12 is a perspective view of a tumbler in which the first-named tumbler is nested.

Figure13 is a perspective view of a trictional drag spring washer bent that the several tumblers may be yieldingly maintained against displacement.

Figure 14 shows another tumbler nested with the preceding tumblers. Figure 15 is a perspective view of an element cooperating with the elements shown in Figure 9, to enclose the several tumblers and washers.

Figure 16 is a perspective view of the ele ments shown in Figures 9 and 15 assembled to enclose the several tumblers and washers.

Figure 17 is a perspective view of the audible click plate showing its central rcctangular opening to receive the rectangular portion of the central bolt.

Referring now to the letters of reference placed upon the drawings;

A denotes the lock barrel fitted at one end with a cap B overlapping the wall 01 the barrel. C is a centrally disposed bolt vided with a projecting tongue C rigidly secured at one end to the cap 13. D is a plunger secured to the bolt C provided with annular flanges d, cl extending in opposite directions from a central web cZ ,the tongue C reaching from the bolt into a radial slot formed in the annular flange of the plunger to insure its rigidity.

E is a bushingsecured in the barrel of the lock by a driving fit, having a central circular opening through which the bolt G is adapted to move. F denotes a staple, on leg of which is longer than the other extending transversely through the wall of the lock barrel. F is a pin projecting from the long leg of the staple, adapted to bear against the Wall of the lock chamber to preclude its removal.

Extending transversely into the long log of the staple is a bore 7 to receive the end of the bolt C, when the staple is pushed into the barrel of the lock, as when locked. The short leg of the staple is provided with a peripheral slot 7 to receive the annular flange d of the plunger D when the staple is in locked position as in Figure 2.

G denotes one-half of a sheet metal case adapted to enclose a number of tumblers and Washers in spaced relation. "lhe element G prohas a plurality of fingers g, g, the purpose of which will be hereafter explained.

H indicates the other element of the enclosing case with its rim indented to form lugs H extending between the spaced fingers g, g of the element Gsee Figure 16-to prevent movement between the parts when assembled to enclose the tu1nblers,-the fingers g, 9 being bent to overlap the first named element to secure the parts together.

T represents one of a plurality of, tumblers having a pairot upstanding lugs I spaced apart, adapted to be engaged by a tongue 0, carried by the bolt C in ettecting an adjustment of the other tumblers. The tumbler I is also provided with a radial slot l to receive the tongue C of the boltwhen releasing the locking mechanism.

J denotes a washer, located adjacent tothe tumbler I, provided with a plurality of ears J projecting from. its perimeter between the spaced fingers g, g of the case G to secure the washer against rotation.

K denotes a tumbler having an arc-shaped slot K to receive the longitudinally bent lug I of the tumbler T. L is a washer located between the tumbler K and the nested tumbler M. The washer L however is bent to form hump L to provide a frictional drag that the tumblers may not become accidently displaced when adjusted.

The washer L has projecting lugs if, L which extend between the fingers g, g of the case Gr. The tumbler M is also pro vided with an arc-shaped slot M ot relatively different length to'receive the lug K of the tumbler K and is further provided with a radial slot M adapted to bebrought into registration with the radial slots G of the element G; l of the element 1; 7K" oi the element K; and M of the element M that the tongue C of the bolt C may pass through the respective slots to effect the unlocking of the device.

N denotes an audible click plate provided with a central rectangular slot N that it may be mounted upon the flattened portion C of the bolt C for rotation therewith.

P is a ball fitted in a socket formed in the end of the lock barrel in line with the path of the corrugations N of the click plate N.

Q; denotes a helical spring surrounding the bolt C and hearing at one end against the click plate and at the other against the inner wall of the cap B. The radial corrugations N on the click plate are spaced apart at N" to provide a neutral or starting point from which point the operator may begin counting upon rotating the cap B for the purpose of adjusting the tumblers to release the looking mechanism.

To secure the case enclosing the tumblers against movement when assembled in the lock barrel, the fingers g, g of the case G project through openings (1 in the end wall memoirs of the kick barrel and are: bent to overlap the Walt at a? in the respective recessesm s'eefiFigures 5 and 6.1 a are metallic plugs fitted in the recesses and overlapping and concealing the fingers g; g -see Figure 6. The end of the bolt- 0 may be secured to the cap B in any desired: manneig as indicated in Figure 6 it is riveted to an indented portion of the cap that the end of the bolt may be flush with the outer wall of the cap to which it is riveted. B denotes a filling plug lodged in the indented portion of the cap between the slotted portion oi the bolt that the surface may to flush with the surrounding wall of the having now indicated the several parts by reference letters, the construction and operation of the device will be readily understood.

, Indescribing the operation of the device it will be assumedthat the-bolt is its unlocked position as indicated in Figure 3; the short leg of the'staple F being'witl'idraivn the lock barrel. and free toswin To lock the device the staple is forced into the side of the lock barreluntil the "short leg contacts with theshank of the bolt C limiting its further movement. The cap B is then forced toward the end of thebarrel of the lockagainst the action 'ofthe spring Or thereby pushing theend of the bolt C intothe socketf, rovided in the long leg of the staple to receive it. p

synchronously therewith, the projecting flange (Z of the plunger D enters th'e peripheral' groove f formed in the short legof the staple. The cap B is then rotated. causing the radially projecting tongue C of'the bolt to engage the upstanding lugs I of the tumbler I, thereby rotating the latter and through the co-operation of the lugsl ex tending; into the arc-shaped slot in the turnbler K causing its rotation,v-while the lug K of the tumbler K'extending into the arcshaped slot M of the tumbler M successively disarranges the several tumblers thereby locking the device.

When it is desired to unlock the same, the tumblers are rotated through the manual operation of the cap B to bring the radial slots I of the tumbler I, K of the tumbler K, and M of the tumbler M into registration with the slot G of the cover G that the projecting tongue C of the bolt C may pass through the slots of the several tumblers due to the outwardthrust of the spring Q bearing against the wall of the cap B thereby releasing the locking mechanism.

' The adjustment of the cap B necessary to bring the slots into registration is determined through the rotation of the audible click plate in accordance with the arbitrary arrangement of the arc-shaped slots of the tumblers, the starting point for the rotation I claim is of the cap being-determined by a spaced portion between: the: corrugations of the click plate;the operator'afte'r feeling out? this: spaced portioiron the click plate. counts the successive clicks of the" plate untili the proper number havebeen attained by: ea h,

tumbler through forward and reverse move ments of. the cap corresponding witln the number of tumblers employedf Uponbring ing; the-slots of the several: tumblers into registration, the tongue 6* on the boltG passes through the radial slots in the several tumblers due to. the urge of the spring Q upon the capB thereby; releasing the staple and unlocking the dev1ce.. 7 Having thus describedinty invention what 1.. In a device of the character described; a lock barrel; a manually: rotatabl-eicap" fitted to one end of the lo'ckbarrel; a rotatable and longitudinally movable bolt securedfto the caphaving a projecting tonguegsastaple'em 1 tending through lateral openings. into the lock barrel, one leg of said staple being longer-than the other and provi'dedwith a the longitudi socket to receive the end of nalliy movable bolt; a plunger'secur-edi to said bolt having an annular flange adapted to' enter aperiphera'l groove the short leg of the staple synchronously withthe entry of the bolt in the socket in the long legof the staple; a serrated click: plate. sleeved upon the bolt and adapted to rotate there= with and through which the bolt has a limited longitudinal movement; a. ball supported in: the wall of theloek barrel over which the click plate travels to produce a series: of audible sounds; a spring located between the click plate and the rotatable cap and a" plurality of co-ordinating tumblers sleeved upon the bolt adapted to co-ope'rate for ad uStment with reference toeach other through the manual rotationof, the: cap; whereby the tumbler mechanism may be .'so positioned that the bolt 'maybe released from looking engagementwith the staple or against the release of the staple.

the tumblers rearranged to secure the bolt 2. In a device of the character described, a

a lock barrel; a manually rotatable cap fitted to one end of thelock barrel; a rotatable and longitudinally movable bolt secured to the cap having a projecting tongue; a'staple extending through lateral openings into the lock barrel adapted to be engaged by the bolt; a serrated click platesleeved upon the bolt and adapted to rotate therewith and through which the bolt has a'limited longitudinal movement; a ball supported in the wall of the lock barrel over which the click plate travels to produce a series of audible sounds; a spring located between the click plate and the rotatable cap; and a plurality of co-ordinating tumblers nested together within a case to form a unitary device sleeved upon the bolt, tumblers being adapted for actuation by the tongue of the bolt, whereby upon the manual rotation of the cap the tumbler mechanism may be so positioned that the bolt may be released from looking engagement with the staple or the tumblers may be rearranged to securethe bolt against the release of the staple. i

3. In a device of the character described, a lock barrel; a manually rotatable cap fitted to one end 01: the 1001: barrel; a rotatable longitudinally movable bolt securedto the cap, said bolt provided with a projecting tongue; a staple extending through lateral openings in the lock barrel adapted to be engaged by the bolt; a plurality of co-ordinating tumblers adapted to be actuated through the tongue of the bolt, said tumblers being nested together within a divided case, one portion of which is provided with lingers adapted to overlap the other portion of the case to secure the parts together and with other projecting fingers extending into a plurality of recesses in the wall of the lock barrel to secure the case therein; and means for determining an arbitrary pro-arranged adjustment of the tumbler mechanism upon the manual rotation of the cap, whereby the bolt may be released from looking engagement with the staple or the tumblers may be rearranged to secure the bolt against the re lease of the staple.

4. In a device of the character described, a lock barrel; a manually rotatable cap fitted to one end of the lock barrel; a rotatable longitudinally movable bolt secured to the cap, said bolt provided with a projecting tongue; a staple extending through lateral openings in the lock barrel adapted to be engaged by the bolt; a unitary element comprising a plurality of co-ordinating tumblers adapted to be actuated through the tongue of the bolt, said tumblers being nested together within a divided case, one portion of said coordinating which is provided with fingers adapted to overlap the other portion of the case to secure the parts together and with other projecting fingers extending into a plurality of recesses in the wall of the lock barrel to secure the case therein; plugs fitted to said recesses and overlapping and concealing the ends of the fingers; sheet metal washers separating the respective. tumblers, one of said tumblers being bent to provide a triotional drag between the several parts, to prevent the accidental disarrangement of the tumblers when adjusted; and means for determining an arbitrary predetermined adjustment of the tumbler mechanism upon the manual rotation of the cap, whereby the bolt may be released from locking engagement with the staple or the tumblers may be rearranged to secure the bolt against'the release ot the staple.

5. In a device of the characterdescribed, a lock barrel; a manually rotatable cap fitted to one end of the lock barrel; a rotatable longitudinally movable bolt secured to the cap and provided with a projecting tongue; a bushing supported in said lock barrel through which the bolt extends; a staple extending through lateral openingsin the lock barrel adapted to be engaged by the bolt; abuttingmeans carried by the long leg of said staple to prevent withdrawal from the lock barrel; a plurality of co-ordinating sheet metal tumblers nested together adapted to be actuated through the tongue of the bolt; and means for audibly determining an arbitrary pie-determined adjustment of the tumbler mechanism upon the manual rotation 01' the cap, whereby the bolt may be released trom locking engagement with the staple or that the tumblers may be rearranged to secure the the staple.

In testimony whereof I sign this specification.

HARRY WILLIAMS.

bolt against release of 

